Ingot-stripper.



No. 888,095. PATENTED MAY 19, 1908. R. S. KIRK.

INGOT STRIPPER.

APPLICATION FILED APR-16, 1907.

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No. 888,095. PATENTED MAY lQ, 1908' R. S. KIRK. INGOT STRIPPER.

APPLICATION FILED APR. 16, 1907.

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No. 888,095. PATENTED MAY 19, 1908.

R. S. KIRK.

INGOT STRIPPBR.

APPLIOATIONIILEDAPR.16,1907.

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WITNESSES ms NORRIS PETERS 50., WASHINGTON, n c

No. 888,095. PATENTBD MAY 19, 1908.

R. s. KIRK.

INGOT STRIPPBR. APPLICATION FILED APR.16 1907.

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No. 888,095. PATENTED MAY 19, 1908. R. S. KIRK.

INGOT STRIPPER.

APPLICATION FILED APR.16, 1907.

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WITNESSES INVENTOR mam.

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RAPHAEL S. KIRK, OF ALLIANCE, OHIO,

ASSIGNOR TO THE ALLIANCE MACHINE COMPANY,

OF ALLIANCE, OHIO, A CORPORATION OF OHIO.

INGOT-STRIPPER.

Specification of Letters Patent.

Patented May 19, 1908.

Application filed April 16, 1907. Serial No. 368,529.

To all whom it may concern:

Be it known that I, RAPHAEL S. KIRK, of Alliance, Stark county, Ohio, have invented a new and useful I ngot-Stripper, of which the following is a full, clear, and exact descrip tion, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a front elevation of an ingot stripper embodying my invention, with a portion of the crane bridge broken away Fig. 2 is a side view of the upper portion of the same on a larger scale; Figs. 3 and 4 are respectively front and side elevations of the stripping column; and Fig. 5 is a top plan view of the stripping column.

The object of my invention is to provide a simple and effective ingot stripping mechanism having a vertically-movable stripping column, upon which all the mechanism nec essary to perform the stripping motions are carried, the stripping column itself being vertically movable by means of operating mechanism mounted on the usual movable trolley having depending guides in which the stripping column is mounted.

lieferring to the accompanying drawings, the numeral 2 designates the usual traveling bridge mounted upon tracks 3 and driven by the usual gearing, indicated at 4.

5 designates a trolley mounted on the bridge 2, upon which it-is driven by means of a motor 6 through the train of gearing 7.

Depending from the trolley is a guide frame 8 in which the stripping column 9 is mounted to move vertically, and which also carries the operatorsplatform 10. Mounted to move vertically in this stripping column 9, on a guide 11, is a lower cross-head 12, to which are pivoted the tongs 13. These tongs are provided. with the lateral arms or extensions 14 at their upper ends, which loosely engage vertical guide rods 15. These guide rods pass upwardly through lugs or brackets 16 on the stripping column, springs 17 being interposed between these brackets and the nuts or heads 18 at the upper ends of the rods.

These springs are for the purpose of relieving the shock, and also to cause the tongs 13 to close more quickly on the ingot mold. The lower ends of the rods are provided with stops 19 arranged to be engaged by the arms 14 when the cross-head is at its lowest position to cause the tongs to swing outwardly and open to a sufficient distance to pass over the top of the mold, indicated at A.

20 designates an upper fixed cross-head by the stripping column and having journaled thereon a series of sheaves 21, the lower movable cross-head having a corresponding series of sheaves 22.

23 and 24 designate two winding drums which are loosely journaled on a shaft 25. These drums are preferably driven by means of an electric motor 26. The armature shaft of this motor has a pinion 27 which engages the teeth of a spur gear wheel 28 on the shaft of which is a pinion 29 meshing with a spur gear wheel 30. On the shaft of this wheel 30 is a pinion 31 which meshes with a spur wheel 32 fixed to the drum 24. The pinion 29 also meshes with a pinion 33 which meshes with a spur wheel 34 having on its shaft 35 a pinion 36 which meshes with a spur wheel 37 on the other winding drum 23. In this manner, as will be seen, the two drums 23 and 24 are rotated in opposite directions. The respective ends of the hoisting rope or cable 38 are'connected to these drums, while its intermediate portion is reeved to the two sets of sheaves 2] and 22 on the upper and lower cross-heads.

The stripping column is moved up and down by means of an electric motor 39 which is geared to a winding drum 40 through the pinions 41, gear wheel 42, pinion 43, and gear wheel 44. The drum 40 has two winding portions, one at each end. To each of these is connected a rope or cable which passes downwardly and around a sheave 46 on the strip )ing column, and then upwardly around an idler wheel or pulley 47 on the trolley, the free end of the rope being connected to a counter-weighted take-up device 48 which is preferably of the character described and claimed in the patent to George V. Shem, No. 840,807, dated January 8, 1907. Attached to the lower end of the stripping column is the bull nose or stop 49.

The operation is as follows: The motor 39 is first operated to lower the stripping column until the bull nose 49 rests upon the top of the ingot within the mold A. The motor 26 is now operated to lower the lower cross-head 12 until the arms 14 of the 7 stops 19 on the rods 15. This causes the tongs to open into position to pass over and engage the lugs on the mold top. The motor tongs engage the 26 is noW reversed, thereby Winding the rope or cable 38 from both ends upon the drums 23 and 2-4, and moving the cross-head 12 up Wardly to effect the stripping. As soon as I the mold is raised clear of the ingot, it is car- I ried to any desired point, and is deposited in the usual manner.

The advantages of my invention result from the provision of the vertically-movable stripping column having mounted thereon all the mechanisms necessary to effect the stripping motion, the gearing for operating the rope or cable 38 being a slow motion gearing, While the gearing for raising and lowering the stripping column or cable being operated at a much higher speed.

Various changes may be made in the details of construction and arrangement of the parts Without departing from the spirit and scope of my invention, since lVhat I claim is I 1. In an ingot stripper, a movable trolley having a dependent guide frame, a stripping column mounted in said guide frame and having a fixed cross-head, a movable crosshead also mounted in said column and carrying tongs, sheaves mounted on said crossheads, a rope or cable having its intermediate portion engaged in the sheaves, Winding means for at least one end portion of the'rope or cable, and a motor for actuating the Wind ing means also mounted on the stripping column; substantially as described.

2. In an ingot stripper, a vertically-movable stripping column having a fixed crosshead, a movable cross-head mold-engaging devices carried by the cross-head, sheaves on the tWo cross-heads, a rope or cable having its intermediate portion passed around the sheaves, a air of Winding drums, on the stripping co umn to Which the ends of the rope or cable are connected, and a motor also mounted on the stripping column for actuating said drums; substantially as described.

3. In an ingot stripgpr, a vertically-movable stripping column aving a fixed crosssheaves head, a movable cross-head mounted in said column and carrying a mold-engaging device, on each of said crossheads, a single rope or cable having its intermediate portion engaged With the sheaves, a pair of Winding drums carried by the column to Which the ends of the rope or cable are connected, and motive means also mounted on the column and geared to said drums to actuate them in opposite directions; substantially as described.

4. In an ingot stripper, a verticallymovable stripper column having an ingot stop, a fixed cross-head, and a movable cross-head, mold engaging devices carried thereby, a

rope or cable connecting the crossheads,'

Winding mechanism for the rope or cable, and a motive device for the Winding mechanism mounted on the stripping column; substan tially as described.

5. In an ingot stripper, a trolley having a depending guide frame, a stripper column mounted to move vertically in said guide frame, ingot stripping mechanism carried by the column, and consisting of a motor, gearing, sheaves and ropes hoisting ropes or ca bles connected to the column, and Winding means on the trolley for said ropes or cables; substantially as described.

6. In an ingot stripper, a trolley having a depending guide frame, a stripping column mounted to move vertically in said guide frame, a stripping mechanism carried by the column, a Winding drum mounted on the trolley, and ropes or cables connected to said drum at each end, and to the stripping column at their intermediate portion, and slack take-up devices to which their other end portions are connected; substantially as described.

In testimony whereof, I have hereunto set my hand.

RAPHAEL S. KIRK.

Witnesses:

G. IV. SHEM, EDWIN W. DIEHL. 

